While Ralink was acquired by MediaTek, official drivers for this older hardware are hard to find on the modern MediaTek site . However, several stable options exist for 64-bit and 32-bit systems. Recommended Driver Versions
Microsoft maintains an official driver package that works with Windows 10. Look for "MediaTek, Inc. - WLAN - Ralink RT3090 802.11b/g/n WiFi Adapter" in the Microsoft Update Catalog. To install:
Linux distributions include native support for the Ralink RT3090 via open-source kernel modules. Controlled by the rt2800pci driver module.
Right-click your Ralink or 802.11n Wireless LAN card and choose . Navigate to the Details tab. Select Hardware Ids from the Property dropdown menu. Look for the following unique identifiers: Wi-Fi Hardware ID: PCI\VEN_1814&DEV_3090 ralink rt3090bc4 v20a driver
Note: Add rtbth to your /etc/modules file to ensure it loads automatically every time your system boots. Troubleshooting Common Issues Issue 1: Frequent Wi-Fi Disconnections
The is a legacy internal wireless and Bluetooth combo card primarily used in laptops from the early-to-mid 2010s. It features a half-mini PCI Express interface and supports Wi-Fi speeds up to 150 Mbps or 300 Mbps depending on the specific implementation. Hardware Overview Chipset : Ralink RT3090 (MAC/BBP and 2.4GHz RF single chip). Standards : 802.11 b/g/n for Wi-Fi and Bluetooth 3.0 + HS. Interface : Half-Mini PCI-Express. Common Part Numbers : HP SPS# 602992-001. Bands : Single-band 2.4GHz only. Driver Availability and Installation
The RT3090 is a highly integrated MAC/BBP (Media Access Control/Baseband Processor) and 2.4GHz RF single chip that fully complies with IEEE 802.11n and IEEE 802.11b/g standards. This means it supports both legacy b/g networks (the most common in the mid-2000s) and the faster n standard that was emerging at the time. While Ralink was acquired by MediaTek, official drivers
" (or an "Unknown Device" if drivers are missing), and choose . Browse Driver: Select "Browse my computer for drivers".
This article provides a comprehensive guide to finding, downloading, and installing the correct to restore functionality. What is the Ralink RT3090BC4 V20A Go to product viewer dialog for this item. Ralink RT3090BC4 Go to product viewer dialog for this item.
Open Device Manager, go to the card's Properties, Advanced tab, and disable . Issue 3: Code 10 or Code 43 Errors Look for "MediaTek, Inc
Yes, the RT3090BC4 uses a standard half-size Mini PCIe interface, which means it can be replaced with a newer card. However, some laptop manufacturers (particularly HP, Dell, and Lenovo) use BIOS whitelists that only allow specific cards. Before purchasing a replacement, research whether your laptop model is whitelisted.
Select , click Have Disk... , and browse to the extracted folder.
Which and version (e.g., Windows 10 64-bit, Ubuntu 24.04) are you using?
Ralink RT3090BC4 V20A Go to product viewer dialog for this item. Driver: Download and Installation Guide The Ralink RT3090BC4 V20A Go to product viewer dialog for this item.
Before diving into driver downloads, it is critical to understand a common point of confusion.